K24 Honda VTC tuning - Cam timing dyno tested k24 pt2 

Oem bottom end 7800-8000k rpm it will last forever. Highest we’ve set the limiter to is 8200 rpm. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-DfiK2YH1MOs.html

you can get a 50deg wheel from speedscience or honda - my type r engine has them - and for max rpm - its the oil pump thats the limiter - rods and pistons will do 8500 from what ive seen on youtube - BUT the oil pump in the k24 with the balance shafts is the bit that craps out big time - like 8k rpm is making it work too hard and ill die sooner than later - lots of good info on the forums or googling for it and boostedboiz youtube has epic amounts of build info on k20 / k24's and pushing the limits to destruction for them - how hard are you going to push it ? :) (edit) DANG theres some awesome info in these replies from everyone else!!!!

8k shift 8200 limiter still has rods after 14+ drag days

At 7800 rpm piston speed is same as on f1 engine spinning to 18000rpm. So if you wanna be safe dont go over that. I have never seen engin fail at 7800rpm

@@cbdrift 50 on stock pistons and stage 2 cams may end with contact

& 4-2-2-1

Yeah it goes a whole lot better, with the extra power in the midrange

I have an ep3 and I absolutely love it man although it was a rough start since previous owner did poorly done maintenance, its still a fantastic car! But tbh in 3rd gear it starts to die (power wise) also needs the next gen transmission since the stock one has pretty long gears if the goal is to stay n/a

@@djpollo2474 My plan if i manage to get one is to keep it na for a while and go induction later. I like superchargers on high revving engines like the k20 but they make power easier with turbo. By the way how much do they sell a good used one in your country. Here in Greece 8000€ plus for a good one

Yeah im all about the over all gain rather than just peak numbers !

I'm hoping it will respond well to the planned changes. which should allow to run the big cam profile much further down the rev rang and pump up the midrange more. its still kinda lazy below 5k

yeah, would be a matter of limiting the vtc pulley to right place. the amount of cam in it atm seems to be good for stock engine street car. will do a little work with some bolt on stuff, now the mechanical and tune issues have been sorted

just carefully with an angle grinder. people just throw a pin in the 50degree pulleys to limit them. which just floats around in there. so didn't feel the need to do anything too fancy.

Atm its like making 120kw with a 4age. capacity doesn't quite scale up like that. but yeah has a long way to go.

@@Garage4age sorry ment no slouch

Was thinking about doing one testing different length intake tubes. snorkel out the bonnet so the bbq intake doesn't effect results

@@Garage4age Fresh air always give some horsepower

I looking for a better midrange, i have drop in cams and i lost midrange and im trying to see if playing with ajustable exhaust gear i can gain it back

@@kseriesjanjo2708 Cant move the power around as much with the exhaust cam as intake. but if its set wrong will be gains to be had. Most of the time its exhaust setup, headers and exhaust. if you drop a bunch of mid range going to bigger cam's. you can see in the other video's i picked up a bunch of midrange changing the exhaust setup. and some more changing the intake manifold. Also need a good tune to see the gains from these, since there is vct and vtec to play with, both need to be tuned to your setup

Hey. would rather not name who did it. plus can never be sure if someone has played with the tune after the fact. my email is in the about section on my channel, re tuning.

Yeah sounds about right. I think the chain was a bit stretched on this engine so could have been 10-45 or something

they only have it on the intake cam. exhaust is fixed. 0 is fully retarded. 35 is fully advanced.

hey, email or dm me on Instagram. email is in "about" on my channel page

manufacturers use crank hp and torque.

@@Garage4age that’s what I thought cool . Thank you.

And just gave it 10 deg more on the vtc wheel for the power gain?

torque in the graph is actual wheel torque the dyno is reading. would be about 255nm at 6000rpm plus some drive line loss to get engine torque maybe 280-290ish at engine. engine spec is in description

@Garage4age damn that's a really nice amount of power , great video. thanks for sharing

The timing marks were a bit wack on this engine. probably chain had stretched a bit. so was skipped foward a tooth along with the vct mod. from memory a tooth is 10 or 15 deg. was maxed out in terms of piston to valve clearance. short answer, yes more the better long as have clearance to do so.

In the graph at the end? They are the cam timing numbers

But how they vary ?..except for the vtec area

@@jsn149 They are in reference to the rpm at top of graph

@@Garage4age alright thanks

A wise person wouldn't only look at the peak power

k24. looks like they just swapped the whole long block in and added some cams and a few bolt ons. personally i probably would have just spent the money on the k20 type r engine. but something could have gone wrong with it i guess.

you are miss informed... Stock head flow is 290-295cfm and RSP head is 315cfm. Stock head is plenty good.

@@Garage4age why would you do that? K24 beats k20 all the time and on low end with same mods k24 will have 20-30hp more. I have made stock on my k24 cl9 190CHP and after Basic mods 255CHP. Now with custom intake and header goal is +265CHP at 7800rpm. K20 can only dream of that power wit this mods.

@@CL9k24a3 I mean for the money they spent on the swap, which was a lot. spending the money on the type r engine already in the car, to get to 170kw makes more sense. not saying anything bad about either engine. plus in my case im more interested in modifying things to get more power, rather than just adding more capacity

will kinda suck if its a street car with no low lobes and vct though. the vct would have a bigger advantage if revving higher also. power would likely hang on till 8500 with vct. fixed to 25 deg will start to fall over after peak. a better example of what vct/vvti can do, can be seen here ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-L2Sw-_J7uSc.html

could do a vid testing different length intake tubes, snorkels out the bonnet for a fair test.

@Garage 4age fantastic idea. Honda forums have lots of posts discussing intake piping length (I.e. pre throttle), but I've never seen any scientific tests that also account for air temp or diameter.

cant remember if was 4th or 5th, im leaning towards 5th. doesn't usually matter too much on a fwd box. rwd box with 1:1 gear shows more power in most cases

@@Garage4age thank you, your video was ver informative

haha, don't worry they will be back!

No. Just 10hp more

ain't no 3y thats for sure

@@Garage4age 🤣🤣🤣